Machine foe seaming cans



(No Model.) 2 Sheets-Sheet 1.

G. W. LO'RE.

MACHINE PoR SBAMING GANS.

N0.,383,400. Patented May 22, 1888.

N. PETERS, Phulo-Lithognphnr. Washington. D. C.

(No Model.) 2 sheets-sneer. '2.

G. W. LORE.

MACHINE PoR SBAMING GANS.

No. 383,400. Patented May 22, 1888.

In n12 la r.- e 7J@ v021.

of the break-joint.

Arent trice.,

GEORGE W. LORE, OF DETROIT, MICHIGAN, ASSIGNOR OF FOUR-FIFTHS TO GEORGEL. SILL, CHARLES T. SILL, LOUIS W. BRGGS, AND JAS. S. SPENCER, ALL OFSAME PLACE.

MACHBNE FOR SEAMENG SANS..

SPEGIFICATEON forming part of Letters Patent No. SSS/00, dated May 22,1888.

Application iled February 23,1888. Serial No. 265,007. (No model.)

To @ZZ whom, t may concern;

Be it known that I, GEORGE W. Lona, a citizen ofthe UnitedStates,residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements in Machinesfor Seaming Sheet-Metal Cans, of which the following is aspcciiication,reference being had therein to the accompanying drawings.

This invention relates to new and useful improvements in machines forseaming sheet'- inetal cans, more specifically designed for securingheads to the body ofthe can by means of a double seam.

The invention consists in the peculiar construction, arrangement, andcombination of the parts, whereby the cau-body with lthe head is heldbetween non-rotatable chucks, which are slidingly secured while thesearning is effected by means of a seeming-roller rotated around thehead and pressed against it or removed from it by expanding andcontracting mechanism.

The different steps in the seaming are executed by the same roller,which for this purpose is provided with a complete set of seamingdevices, which are successively brought into action simultaneously witha sliding movement of the chucks, which carry the head of the can intoproper position relative to the seaming devices. Automatic mechanism isprovided to perform all the steps of seaining in a continuous operation.

In the drawings which accompany this speciiication, Figure l is anelevation of my machine. Fig. 2 is an elevation of the lowerportion ofthe machine, illustrating the operation Fig. 3 is a plan of theseaming-rollers and their actuating medianism. Fig. 4 is a plan showingthe drive mechanism. Figs. 5, G, 7, and S are crosssections through thecan, illustrating the operation of the seaming-roller in its differentpositions. Figs. 9 and l0 are detached perspective views or" the cams onthe cam-shaft.

A is the lower and A is the upper chuck, between which the can and headare clamped, B and B are shafts to which these chucks are respectivelysecured. These shafts slide in suitable vertical bearings, but arenon-rotatable. The shaft B', carrying the upper chuck, is secured at itsupper end to the arm O, which is also secured to the frame o r bar D,which slides in vertical bearings E, secured to the main standard orframe F, which latter supports all the operating parts of the machine.The shaft B, which carries the lower chuck, slides in vertical bearingsG, secured to the sliding frame D, and is provided at `its lower endwith the groovcd collar a, into which engages one end ofthe lever b,fulcrumed atc to the sliding frame D, or any part thereof. The rear endof this lever is pivotally connected with one of the two toggle-levers dd, which form the break-j oint e. A link, f, connects the breakjointpivotally with the foot-lever H. The toggle-lever d is .pivot-allyconnected to the sliding frame D at g, and is provided with the heelextension g', which prevents the straightening of the toggle beyond thelocking position, as shown in Fig. 1. Suitable springs, h h, arearranged to normally hold the parts in position, as shown in Fig. 2; butwhen the foot-lever H is depressed the springs serve to lock all theparts iirmly in position, as shown in Fig. 1, thereby compelling theupper and lower chucks to be actuated together by the connecting-frameD.

I is a searning roller, of which there may be one or two, as desired.This seaming-roller is provided with the scanning groove i, thecurling-groove t', and the flattening-groove i2, arranged in verticalseries.

J J are the two arms of a double cranklever, fulcrumed at j to the endof therevolving head or frame K. The arm J carries the seamingroller onthe under side of the head K, and the arm J is secured on top of thehead K, and has secured to its free end the link L, which is pivotallysecured to the sliding collar M, which slides on the feather on thehollow shaft M, to the lower endoiwhich the head K is secured.

engages with one end of the cam-lever N, which is fulcrumed at 7c to theframe of the machine, and bears at its opposite end. upon theseaming-cam O.

P is the cam-shaft, journaled in suitable vertical bearings and providedwith the chuckactuating cam Q, with which engages the arm roo Thesliding collar M It, secured to the sliding frame D. A tripping-arm, Z,is secured to the cam Q, and in a revolution of said cam is adapted tostrike against the crank Z upon the rock-shaft Z2. To the lower end ofthe rock-shaft ZAZ is secured another crank-arm, Z3, Fig. 2, adapted tostrike against the break-joint e, and thereby effect the breaking of thejoint, a spring, Z4, being arranged to keep the tripping-shaft in normalposition.

To the upper end of the shaft P is secured the flange m,which carriesthe pawl m', adapted to engage with the ratchet-wheel n, loosely mountedupon the shaft P. The ratchet-wheel n is provided with the bevel-gear o.Motion is carried to this bevel-gear o from the main drive-shaft p ofthemachine, which is provided with the worm 1)',whicli meshes with theworin-gear p2 upon the shaft p3, and the bevel gear-wheel p4 transmitsmotion to the bevel gear-wheel o. A bevel gear-wheel, q, upon the maindrive-shaft p engages with the bevel-gear r upon the hollow shaft M',which imparts motion to the grooving-roller.

R is a tripping-bar secured at the lower end to the break-joint e, andprovided at the upper end with the head S, adapted to engage and operatethe trippingdog T, which slides in suitable bearings, as shown in Fig.4, and projects normally into the path of the heel m2 of the pawl. Thehead S of the bar R when depressed withdraws the tripping-dog T andpermits the spring m3 to throw the pawl into engagement with theratchet.

In practice the operation of the machine is as follows: In the startingposition of the machine the breakjoint is unlocked, as shown in Fig. 2.This withdraws the lower chuck, A, to itslowest position. The operator,placing a can with a loose head upon this chuck, then places his foot onthe foot-lever II, and, forcibly depressing it, locks the break-joint,as in Fig. 1. The parts being properly adjusted, the can-head is newheld securely between the upper and lower chuck, with the flange A2 ofthe upper chuck forming -a follower for the seam, as shown in Fig. 5. Bythe same movement of depressing the foot-lever the tripping-bar Rretracts the sliding deg T from the heel of the pawl m, which thereuponengages with the ratchet u, and thereby communicates motion to thecam-shaft P. The cam O upon this cam-shaft thereupon actuates thecam-lever N, which, by raising and lowering the sliding collar M,effects the lateral movement ofthe seaming roller or rollers from ortoward the head of the can, while at the same time the head K carriesthe seaming roller or rollers around the can. It will be seen thatif thesliding collar M is depressed by the camlever the link or links Lactuate the double crank-levers to carry the seaming roller or rollerstoward the head, while the reverse movement is effected by the oppositemovement of the cani-lever. Simultaneously with the operation of the camO the cam Q operates upon the arm R to raise and lower the sliding frameD,which cai-ries the chucks A A up or down, holding at the same time thecan clamped between them. One revolutioii of the cam-shaft Paccomplishes the whole seaming operation, and during this operation thechucks A A carry the cali-head for a certain fraction of the revolution,rst, in the relative position shown in Fig. 6, then in the relativeposition shown in Fig. 7, and then in tlie relative position shown inFig. 8. In the relative position shownin Fig. 6 tlie seaming-groovefi ofthe roller forms the seam by crimping over the flange of the head fromits normal position. (Shown in Fig. 5.) In the relative position shownin Fig. 7 the curling-groove t" operates upon the seam to curl it over,and in the relative position shown in Fig. 8 the seam is flattened downand thus completed. The proper construction of the cams O and Q toeffect this operation of the parts is thus easily determined. After onerevolution of the shaft P is completed the break-joint is tripped by theoperation of the devices before described, when the lower chuck is letdrop and the can is released.

-What I claim as my invention is- 1. The combination,in a can-seamingmachine, of the non-rotating and vertically-sliding chucks for holdingthe can body and head, a seaming roller or rollers mounted upon a framerevolving around the head, expanding and contracting mechanism,substantially as specified, to bring said roller or rollers in or out ofcontact with the head, and mechanism for raising and lowering the chuckssimultaneously, substantially as described.

2. The combination, in a can-seaming machine,of thechucksforholdingtlicean bodyand head, the sliding shafts carrying thesechucks, the connecting` mechanism between the shafts to compel theirjoint operation, and thebreakjoint in said connection to permit theindependent operation of one of said sliding shafts, substantially asdescribed.

3. The combination, in a can-seaming machine, of the chucks for holdingthe can body and head, the vertically-sliding shafts carrying thesechucks, the connecting mechanism between these shafts to compel theirjoint operation, the break-joint in this connection, the foot-lever forlocking and the automatic tripping device for unlocking saidbreak-joint, substantially as described.

I OO

IIO

4. The combination, in a can-seaming mabrought into proper positionrelative to the head, substantially as described.

5. The combination,in an organized machine for double seaming canheadsto bodies, of the non-rotating chucks for holding the can' body andhead, the vertically-sliding shafts to which said chucks are secured,the breakjoint connection between the lower and upper chuck, theseamingroller provided with a set of seaming devices in vertical series,the revolving head carrying such seaming-roller, the eX- panding andcontracting mechanism for operating said seamingroller laterally towardand from the cam, with the chuck lowering and raising mechanism, therevolving camshaft for actuating said mechanism, the drive-connectionfor said shaft, the trippingclutch in said drive-connection, thetrippingbar controlling said trip-clutch by the closing of thebreak-joint, the automatic trip controlling the breaking of thebreakejoint by the motion of the cam-shaft, and the foot-levercontrolling the closing ofthe breakjoint by the action of the operator,substantially as described.

6. The con1bination,in an organized machine for double seaming can-headsto bodies, of the non-rotating chucks for holding the can body and head,the vertically-sliding shafts to which said chucks are secured, aseaming roller or rollers provided with a complete set of seam ingdevices in vertical series,the double cranklever, to one end of whichsaid lever is mounted, the revolving head to which said crank; lever isfulcrumed, the shaft-upon which saro revolving head is mounted, thesliding' collar upon said shaft, the link connecting the sliding collarwith the crank-lever, the cam-lever engaging with the sliding collar,the seamingcam actuating said cam-lever, the camshaft upon which saidseaniing'cam is mounted, the chuck-operating cani mounted upon the sameshaft, the arm engaging with said chuck-opA erating cam, and thevertically-sliding frame which carries the chucks and to which the saidarm is secured.

7. The combination, with the verticallysliding chucks carrying the bodyand head of the can,of the seamingroller revolving around the head ofthe can and provided with :a set of seaming devices in vertical series,and mechanism, substantially as described, for bringing into operationthe successive seaniing devices of said roller, substantially asdescribed.

In testimony whereof I aftix my signature in presence of two witnessesthis 9th day of February, 1888.

GEORGE V. LORE.

Witnesses:

P. M. HULBERT, JonN SOHUMAN.

